X: Do you want to go shopping with me on Saturday?
Y: I'm not sure.
(I have enough money)
Y: I am going to have enough money.
or
Y: I will have enough money.
X: Do you want to go shopping with me on Saturday?
Y: I'm not sure.
(I have enough money)
Y: I am going to have enough money.
or
Y: I will have enough money.